/Engine/Source/Editor/GameProjectGeneration/Public/GameProjectGenerationModule.h
Updates the currently loaded project. Returns true if the project was updated successfully or if no update was needed
virtual bool UpdateGameProject ( const [FString](API\Runtime\Core\Containers\FString) & ProjectFile, const [FString](API\Runtime\Core\Containers\FString) & EngineIdentifier, [FText](API\Runtime\Core\Internationalization\FText) & OutFailReason )